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The first vaccines were invented in 14th century China. Where powdered small pox scabs were blown up peoples noses. Nasal Insufflation killed 1 - 2% of recipients which was still preferable to smallpox. This method was brought to Europe in the late 17th c

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The first vaccines were invented in 14th century China. Where powdered small pox scabs were blown up peoples noses. Nasal Insufflation killed 1 - 2% of recipients which was still preferable to smallpox. This method was brought to Europe in the late 17th c	111